How about this: These replacement
How about this:
These replacement Gatsby tubes are exactly what I needed. I use them when a blank blows out during drilling or turning, and it’s a lot cheaper than sacrificing a whole pen kit just to get another tube. The dimensions matched the originals, the brass was clean and straight, and they pressed in without any issues. I’ll definitely keep a few sets on hand in the shop. Great value if you make a lot of Gatsby pens.